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Argument 53
In this argument, the arguer claims that increased levels of melatonin in (delete "the") mother’s pregnancy causes infant’s shyness and the shyness continues (infancies') later life. To support the conclusion, the argument cites the result that 25 infants who experienced a high level of their mother's production of melatonin which is known to affect some brain functions in a research 13 years ago showed mild distress under unfamiliar environment. The argument also cites the result that most of these children think themselves shy in a recently follow-up study. Admittedly, the argument appears to be somewhat convincing, however, through thoroughly analysis, it actually commits several substantially fallacies.
First of all, the sample in the research can not (cannot) represent a general conclusion. The argument does not provide enough information about these infants such as the metal health situation. As we know, if these infants had some physic ("disasters" is not suitable, consider other words like disabilities, or disease), they would also show signs of distress. Moreover, the sample is not sufficient to make the claim. Therefore, without ruling out these possible reasons and given sufficient samples, the arguer can not make me convincing.
Secondly, even though the sample can represent to make conclusion, the arguer fails to establish a causal relationship(_good) between the signs of mild distress and the increasing level of mother's production of melatonin. Just as informed, the melatonin-a hormone- which increases in autumn is known could affect some brain functions because of decreased sunlight, (adding "which") does not mean it will result to the signs of distress. As we known, brain has many functions which could be influenced by many other factors. There is no evidence to imply the level of melatonin indeed leads to distress. Consequently, on the basis of these facts, the argument can not justify the causality.
Finally, even if this causality is valid, the arguer also cannot make conclusion that the shyness continues (adding "exists") into their later life. The recent study ignores some other possible reasons that would make these teenagers shy. For example, the situation of their lives (which situation, it is better for you to give a specific example) can influence their character. Furthermore, just as mentioned in the argument, not every children identified themselves as shy hints some other factors can affect the character of these children.
To conclude, the arguer fails to make me convince the conclusion. To better support the argument, the arguer would have provided more samples and information about these samples to make a general claim. Similarly, to better evaluate the argument, we (delete would )need to know whether the melatonin indeed causes shyness and whether other factors can also cause shyness.
还是很有层次的,但是有的表达不是很到位,可以写的详尽一些。 一起加油啊! |
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